ambiophonyn.
/ˌambɪˈɒfəni/, /ˌambɪˈɒfn̩i/, U.S. /ˌæmbiˈɑfəni/ 1. A method of augmenting the acoustics of a room by using a large number of loudspeakers to mimic the reverberative properties of a room of different size or construction. Frequently as a modifier. Now rare and historical.In ambiophony, the sound of the performance is relayed through each speaker with a delay and intensity precisely calculated so that the overall effect is an approximation of the diffuse sound that would be experienced in a larger room.
ΚΠ
1959 Philips Techn. Rev. 20 322/2 The solution to this problem by means of ambiophony has already been described.
1963 Radio Times 10 Jan. 32/1 Studio 4 uses a new device called ‘ambiophony’... The ‘dead’ orchestral sound is..played back to the studio through..sixty-two loud-speakers at several different very small time-delays, calculated in thousandths of a second.
2011 Building Acoustics 18 242 Some of the earliest in-line systems were the Acoustoelectronic Auditorium developed by Olson, the Ambiophony system, and the patents of Graham and Veneklasen.
2. A method for producing a surround sound effect using a regular stereo signal, in which ambient sounds and those resulting from the acoustics of the rooms (which are recorded out of phase on the left and right channels) are played through two additional side speakers. rare.
ΚΠ
1975 Which? Sept. 274/2 This can create a four-channel effect from stereo records, tape or radio; how pleasing you find this effect (called ambiophony) will depend on you.
Derivatives
ambioˈphonic adj. now rare and historical of or relating to ambiophony (in either sense).
ΚΠ
1959 Philips Techn. Rev. 20 323/2 An ambiophonic installation can also be used to suggest to listeners that they are seated in a hall of greater size.
1975 Gramophone Jan. 1416/3 There may be a facility for giving a quasi-quadraphonic or ‘ambiophonic’ effect.
1997 B. Miles Many Years from Now viii. 324 The sound was fed back into the studio by the one hundred Ambiophonic speakers around the walls, filling the space with a massive wall of sound, more like a live concert than a recording session.
This entry has been updated (OED Third Edition, March 2020; most recently modified version published online December 2021).
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n.1959